Finding the Fourth Proportional to 106,979.28, 160,468.44 and 43,828.68
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Solution
The fourth proportional to 106,979.28, 160,468.44 and 43,828.68 is: 65,742.82
Step by Step Solution
- Step 1: Write the proportion equation
106,979.28 : 160,468.44 = 43,828.68 : x - Step 2: Convert to fraction form
106,979.28/160,468.44 = 43,828.68/x - Step 3: Cross multiply
106,979.28x = 160,468.44 × 43,828.68 - Step 4: Simplify right side
106,979.28x = 7,033,119,906.86 - Step 5: Solve for x
x = 7,033,119,906.86/106,979.28 - Step 6: Final answer
x = 65,742.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.